Fuel oil or gas furnace.



lw. spqmGLY. ,FUEL 011. 0R GAS PUBNAGB. APPLICATION P-ILBD'AUG. 19, 1908.

Patented Nov. 8, 1910.

2 BHEETS*S A sTArrns PATENT oFFIoE.

ma' s. QUIGLEY. or JEBsnY CITY,` NEW JERSEY, AssIGNon To nocKwELL summon A comm, A conronn'rron .or :NEW YORK.

of Jersey City, in the county of Hudson 'and State of New J ersey,1.have invented certain new and useful Im rovements in Fuel Oil ofGas Furnaces, o .which the following is a 1specification.

y invention relates to improvements in fuel oil or gas furnaces, and in articular to a devicnlf this character designed for tempering tools, but 'itwill be understood that the invention? is not limited to ,this sileuse.v

n temperin tools, especiall those made ofmodern hig speed steel al oys, it; is desirable .to heat to a'high temperature only the end or cutting ortion of the tool; YWhen using a coal fire:` or this purpose, the heat more or -less concentrated and the shank the tool is protected by the coal bed so V'tllat practically only the point of the tool is heated. It is otherwise with an oil or gas Y, furnace as the heat is diffused throughout 2,5

the furnace chamber, and as thetool has to thrust ywell within the furnace chamber L under ordinary conditions, the shank as we "..asthe cuttin ort-ion of the tool is heate It is one o e objects of my invention 'to frovide a fuel oil or gas furnace wherein these objections are overcome.

Another object is to provide meanslfor protecting the loperator from the direct heat y of the furnace.

.furnace is provi x ,Further objects will `cation proceeds. In thecarryin out of my invention the ed with an opening which appear as the specifi- :js closed by a so-calleddoor, thedoor having Isuitable tool receiving orices Aand serving? as a tool holden: This tool holder is adapt-` ed to support the tool with its inner end prowithin the furnace and some means are provided fr. cooling' the tool holderto Lrevent .overheating of the outwardly pro- ]ectin portion of the tool. This' cooling effect 1s referably obtained by makin-g the. tool hol er double-walled and circulating a cooling fluid through the same. This` cooling luld might simply be water, or fox-.some r purposes a streamv of air could be caused to.A

circulate throughthe tool holder. The tool holder would preferably be mounted so that it might'readily be removed'gfrom the; furnace opening, as by means of 1a. .hinge struc.-

FU'EL OIL O Il.v GAS FURNACE,

` ure ghich would 'permit off me holder be.

ing withdrawn from the furnace. and then f swung to one side.

structed with openings or o'rices, of various] PatentedNov.

sizes, adapting it t receive diifer'entrsized tools and the `holder would preferably mounted Vso asto. be easily detachablefromV the furnace, so that tool holdersada ted for different purposes might be intere anged. '965" I also provide in connection with thesupport for the door or tool holder, pipe connections for supplyingthe cooling fluid to the holder', capacitated to have the sameA y relative movement as the holder.` f

Still another featureresides in' providing a support `for the outer portions of extray large tools or implements.` This support would preferably` be adjustable 'and also capable of being removed from the furnace.x In :the accompanying. drawings isfil-lusf` trated the preferred embodiment ofv` the inf vention but various-changes in the structure and arrangement yof the parts might, be made without departing from the spirit-of fthe invention? Figure 1, is a front or 'face view the.

preferred form of the invention. Fig, 2, is a longitudinal sectional View of. ther same f taken on line 2 -2 of Fig...3.` Fig. i3, is "3457.`

a transverse sectional view of the invention.

taken on the line 3-3 of Fig. 1. Fig. 4.,

isa horizontal sectional View taken on thek i line lf-L4: of Fig. 3.v Y'Fig'. 5, `is a planview.

cf the sliding hinge sup Ort-'ttor the-tool SAQ holder, and Fig. 6, is'a ront elevation-of the same.4

Similar reference characters indicate like parts throughout the several views.

The furnacev structure is preferablysup-` ported on'suitable framework 1. x The body.

` of the furnaceis madeiof fire brick or other`l refractoryj Vmaterial and it preferably "rests -upon a hed yplate 2'having 'an u'pturned're` taining flange 3,' The corners of the furnace- .farepreferably strengthened by the angular: corner bars 4,*and the sides or walls by the in Fig. 4. The furnace is providedw the usual openings 6 inzthe ends thereof lfor sheet metal plates 5 as show'n most clearl.

los Y the introduction of the burners; Oil or gas' is used asa fuel and theburners 7,fare s up' plied with such fuel by means of the p1,p es. `8, the ,burners Y,being lgovernedfby meansgof velues 91 Theiss@ wall-0f ith@ frna Hes-11.1-

The tool holder would preferably .be con-f 60'.

an .opening ther'ein, and the face plate 11, of the furnace has a corresponding opening.v In the furnace opening. is fitted the tool holder v12, Whichacts as a door or closure to said opening. VThis toolholder is hollow as seen in Figs. 3`and 4 so as to receiye la sultable'cooling medium and 1t 1s provided Witlf'orifces or'opemngs 13, for the lntrovduction of the tools or implements.Y These tool-orifices would preferably be of various sizes to receive tools of difljerents'ize.

The' tool'holder is preferably mounted so that it may be moved out of theyvay to allow ready'access tothe interior'of the furnace.

This mounting for 'the tool holder would preferably `consist ofA an angular hinge bracket illustrated in detail in Figs. 5 and 6 adapted'to swing on a pintle l5, the bracketbeing extensible so as to permit of the holder lbeing first Withdrawn from the n `furnace opening before it is swungfto one side. 'Ih1s extensiblel movement could be accomplished by making the; angular hinge bracketI in two parts, as illustrated, a hinge part 16,having direct'connection withvthe pintleand a slidahle part or parts 17, conf nect'ed to the holder, the second part or parts being adapted'to slide in the guide loops 18,-

Ion the hinge pant-. Y .50.

The water or other cooling medium is led fromv the vertical feed pipe or riser 19, into the louter: portion of thefhollow tool holder at the po1nt20, and a length of flexible tubingv 21,s preferably .interposed in the suppy ipe,toallow for the swinging movement o 1t etool holder. In addition to thisthe horizontal portion of the supply pipe ex- .tendingalongside the end of the furnace would Preferably ,be made in telescoping partsjand ,providedfWit-'h astufling box 22',

toipermlt: extensible movement of the supply corresponding tc the extensible sliding movement of the hinge. The riser would als'obeswiveled in the block 23 so that the movementsjof the hinge' and the supply pipe would be harmonious. The water or, other .cooling element is Vallowednto vescape through the overflow` pipe24f, said pipe emptying into-affunnel 25 or other receptacle. A constant circulation of-l cooling fluid is thus provided for in' the tool holder and by means 'of the connections described, the holder may readily be withdrawnfrom the furnace and swung tooneside without in anyway intery article-being tempered or otherwise treated in the furnace, is indicated in dotted lines,l Fig. 4,' whereit will be seen that thetool is tha.

fearing withthe other parts ofthe furnace.

" The usual positionozf',l the tool or other supported by the holderwith its inner end projecting within'the ful-*nace chamber and tra long or heavy, the `extreme outer portion the holderfsurrounds the outwardly projecting portion vof ythe tool andprevents' "overheating of the same. 'If the tool is exof the tool could be allowedto rest von the tool supporting bracket 26, which is slidably carried on brackets 27, so as tobe adjustable to and from thel furnace.

.If desired', the tool holder may be entirely disconnected from the furnace by disengaging the hinge support and the4 Water con-` nections. This might be done for the purpose of substituting another tool holder having different tool-receiving openings, or for using the furnace for another purpose.

When the" holder is to be disconnected or 'swung outofvthe way,.the tool supporting bracket may be removedby unscrewmg the retainingnuts 2 8 on the'ends of the'bracketv 'and pulling' the bracket out.

As the heat generated in rfurnaces of this character is ver provide means or protecting the operator f r'om thedirect heat' of the. furnace. For this purpose a double-Walled heat shield 29,

" may be supported on brackets 30, infront of intense, yit is desirable to and above the tool holder and iii-'addition' y to this I prefer to employ a perforated blast tube 31, arranged in front of and below the tool holder, which directs a blast of air upyvard past .the face of the holder, which pre-y vents any great degree of heat from shoot.-

-ing out through the tool-receiving openings in the holder and directs What heat that does escapestraight upward inside the heat screen. To a certainextent this blast also helps to cool thefout'wardly projecting portions of the tool or tools carried by the holder. The air blast may be regulated by a slide valve 32. The terms Water as rused' in the `claims are to be construed broadly as including cooling fluids or mediums other'thanvvjater.' Also. while the furnace has been described in its use lfor tempering tools it will of course be understood' 'that any implements or materials other than tools could be hardened or inthe said furnace.

What is claimed, 1s zu otherwise treated and water-cooled l. A liquid fuel or gas furnace having a' I' water cooled tool holder adapted to receive la tool so that its end will. project into the furnace chamber, the tool holder surrounds ing the outwardly projecting part ofthe tool to prevent overheating thereof, and

means supporting the tool. holder in active relation toA the furnace and permitting relmoval thereof from the furnace, said means Valso 'supporting the tool holder during lts y removal from the furnace. 'l

2. In ,combinatiomwith an4 oil fuel or gas furnace having an opening `in one of its! Walls, awatercooled door acting as a closure to said opening and constituting a tool 'holder; a pivoted hinge bracket serving tov support. said door, and a sliding-joint inthe hinge bracket permitting the door to befr-'eed`A -of the opening and then'swung to-one side.

3. In combination with an oil fuel or gas furnace `having an vopening in one of its walls, a water cooled door acting as a closure to said-opening and constituting a tool holder, a pivoted hinge bracket serving' to support said door, and a sliding joint in. the

hinge bracket permitting the door to be Walls, a Water cooled dooracting `as a closure to said opening and constituting a tool holder, a pivoted hinge 4bracket serving to support said door, and a. sliding joint in the hinge bracket permitting the door to be freed of the opening and then swun to one side, and a pipe for supplyin flui to the door, the supply pipe and the hinge bracket having a common center.

Signed at New York, borough of Manhattan in the county of New York and State of New York, this 15th -day of August A. D. 1908.

WIRT S. QUIGLEY. 

